Diodia kuntzei (Rubiaceae, Spermacoceae) is prostrate herb, rooting at the nodes, with reddish stems, multifimbriate stipules, axillary one-two-flowered inflorescences, corolla with filiform tube, and indehiscent fruit. The species is recorded for the first time for the state of Acre, where it was found in Alto Juruá region, municipality of Cruzeiro do Sul, in waterlogged habitat (07°33′32″S, 072°42′59″W). Images of the plant and comments on its habitat and distribution are provided.Fil: de Souza, Maria Cristina. Universidade Federal do Acre; BrasilFil: Cabaña Fader, Andrea Alejandra. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; ArgentinaFil: Silveira, Marcos. Universidade Federal do Acre; BrasilFil: Liesenfeld, Marcus Vinícius Athaydes. Universidade Federal do Acre; Brasi

Cabaña Fader, Andrea Alejandra

de Souza, Maria Cristina

Liesenfeld, Marcus Vinícius Athaydes

Silveira, Marcos

Check List

English

Diodia kuntzei (Rubiaceae, Spermacoceae) is prostrate herb, rooting at the nodes, with reddish stems, multifimbriate stipules, axillary one-two-flowered inflorescences, corolla with filiform tube, and indehiscent fruit. The species is recorded for the first time for the state of Acre, where it was found in Alto Juruá region, municipality of Cruzeiro do Sul, in waterlogged habitat (07°33′32″S, 072°42′59″W). Images of the plant and comments on its habitat and distribution are provided

Souza, Maria Cristina de

Fader, Andrea Alejandra Cabaña

ZENODO

Diodia kuntzei K. Schum (Rubiaceae, Spermacoceae): a new record for the state of Acre, Brazil

CONICET Digital

Diodia kuntzei K. Schum (Rubiaceae, Spermacoceae): a new record for the state of Acre, BrazilMaria Cristina de Souza1, Andrea Alejandra Cabaña Fader2, Marcos Silveira3, Marcus Vinícius Athaydes Liesenfeld11 Universidade Federal do Acre, Campus Floresta, Centro Multidisciplinar, Estrada do Canela Fina, km 12, Gleba Formoso, Cruzeiro do Sul, Acre, 69980-000, Brazil. 2 Instituto de Botánica del Nordeste, Sargento Cabral 2131 cc. 209, FACENA, Avenue Libertad 5460, Corrientes, W3400CBL, Argentina. 3 Universidade Federal do Acre, Sede, Centro de Ciências Biológicas e da Natureza, Rodovia BR 364, Km 04 - Distrito Industrial, Rio Branco, Acre, 69920-900, Brazil.Corresponding author: Maria Cristina de Souza, mcs122005@yahoo.com.brAbstractDiodia kuntzei (Rubiaceae, Spermacoceae) is prostrate herb, rooting at the nodes, with reddish stems, multifimbriate stipules, axillary one-two-flowered inflorescences, corolla with filiform tube, and indehiscent fruit. The species is recorded for the first time for the state of Acre, where it was found in Alto Juruá region, municipality of Cruzeiro do Sul, in waterlogged habitat (07°33′32″S, 072°42′59″W). Images of the plant and comments on its habitat and distribu-tion are provided.KeywordsAlto Juruá, flora, geographic distribution, taxonomy.Academic editor: Guilherme Dubal dos Santos Seger | Received 27 September 2019 | Accepted 6 May 2020 | Published 2 June 2020Citation: Souza MC, Fader AAC, Silveira M, Liesenfeld MVA (2020) Diodia kuntzei K. Schum (Rubiaceae, Spermacoceae): a new record for the state of Acre, Brazil. Check List 16 (3): 675–679. https://doi.org/10.15560/16.3.675IntroductionRubiaceae is a well-represented family in the Amazo-nian state of Acre. Daly and Silveira (2008) reported 61 genera and 242 species, of which Psychotria L. (58 spp.), Palicourea Aubl. (21), Coussarea Aubl. (20), and Faramea Aubl. (18) are the richest taxa. The remaining genera have less than 10 species. Such records, however, have changed over the last years, increasing the number of the taxa for the state. Medeiros et al. (2014), as the product of a new floristic study, have added two more genera and 10 species.Daly and Silveira (2008) mentioned only five gen-era among the species with herbaceous habit: Sperma-coce L. with six species; Geophila D. Don with three; and Psychotria L., Oldenlandia L., Sipanea Aubl., and Margaritopsis C.Wright with only one each. According to Daly and Silveira (2008), there were no Diodia L. spe-cies in Acre. However, they listed two names, Diodia ocymifolia (Willd.) Bremek. and D. hyssopifolia (Willd.) Cham. & Schult., as synonyms of Spermacoce ocymi-folia Willd. and S. hyssopifolia Willd., respectively. In contrast, Medeiros et al. (2014) listed those names under Borreria ocymifolia (Willd.) Bacigalupo & E.L.Cabral and Borreria hyssopifolia (Willd.) Bacigalupo & E.L.Cabral, respectively.Diodia, as described by Linnaeus in 1753, is a genus native to the Americas, based on D. virginiana L. from Check List 16 (3): 675–679 https://doi.org/10.15560/16.3.675316© The authors. This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.NOTES ON GEOGRAPHIC DISTRIBUTION676 Check List 16 (3)the USA. It is composed of herbs with axillary inflores-cences, four- or five-lobed corolla with a long slender tube, and indehiscent fruits; they are usually associated with palustrine habitats. The only taxonomic revision for the genus was published by Bacigalupo and Cabral (1999), in which five species were accepted, of which three occur in Brazil. However, these authors listed a only few specimens from some states, which reflects the need to increase the number of field collections and exhaustive work in regional herbaria. Diodia kuntzei K.Schum. is a widely distributed species in South Amer-ica and was recorded for Venezuela, Peru, Bolivia, Bra-zil, Argentina, and Paraguay (Bacigalupo and Cabral 1999; Pereira 2007). In Brazil, based on available online databases (SpeciesLink 2019; Flora do Brazil 2019), this species grows in the states of Pará, Rondônia, Amazo-nas, Amapá, Mato Grosso, Goiás, Mato Grosso do Sul, Paraná, Minas Gerais, and Tocantins. In the present paper, we report Diodia kuntzei for the first time from the state of Acre in the western Brazil, in the Alto Juruá region.MethodsConventional taxonomic techniques were followed. The specimens studied were collected in the natural areas of the Campus Floresta of the Federal University of Acre, municipality of Cruzeiro do Sul, in seasonally water-logged open areas of flat relief (07°33′32″S, 072°42′59″W; altitude ca 240 m). The identification was made using the last taxonomic treatment (Bacigalupo and Cabral 1999) and by comparison with images available via Species-Link (2019) and Flora do Brazil (2019). The specimens were deposited in the Campus Floresta Herbarium (CFCZS) of the Federal University of Acre. The her-baria acronyms follow the standards of Holmgreen et al. (1990). To check the records of species geographic dis-tribution we use data from REFLORA database among others (Bacigalupo and Cabral 1999; Zappi and Lima 2016; SpeciesLink 2019; Flora do Brazil 2019).ResultsDiodia kuntzei K.Schum., in Mart., Fl. Bras. 6(6): 15. 1888. “Lectotype: Paraguay, Asuncion, Habitat ad ripas fluvii: Paraguay, prope Assumption, Mar 1875, B. Bal-ansa 1750 (P not seen, designated by Bacigalupo and Cabral 1999; isolectotypes BAF!, F!, P not seen, K!)”.New record. Brazil: Acre: Alto Juruá region: Cruzeiro do Sul: Universidade Federal do Acre: Campus Floresta (Fig. 1), in open, flat relief, and seasonally waterlogged areas (07°33′32″S, 072°42′59″W), Silva, C.P., 27 Dec. 2017 (18, CFCZS 603) (Fig. 2A–D); Souza, M.C., 15 Feb. 2018 (781, CFCZS 723).Additional specimens examined (Table 1). BRAZIL • Amapá: between km 25 of BR 156 and Matapi, NW of Macapá, 16 Feb. 1979, Austin 7422 (INPA 97442). • Amazonas: Careiro, Rio Solimões, South bank, 10 km E of Boca de Janaucá, 3 Oct. 1973, Berg, C.C. 17589.0 (NY1061132). • Amazonas: Boca do paraná do Cambixe, Figure 1. Geographic distribution of Diodia kuntzei in South Amer-ica, and the Amazon Rain Forest distribution (light shaded), based on literature, REFLORA, and SpeciesLink records (blue triangles). The red circle indicates the new record from the state of Acre.Figure 2. Diodia kuntzei A. Habit and details of margins and red-dish veins of leaves. B, C. Details of inflorescence: flowers with pilose lobes and exerted stamens.Souza et al. | New record of Diodia kuntzei 677Table 1. Records of collections of the Diodia kuntzei in South America, included Figure 1. *New records.Brazil state/country Collection codeCollector no. Latitude LongitudeAcre* CFCZS 603/723 –07.5589 –072.7164Amapá UEC 7422 02.2000 –050.8167Amapá IAN 27232 –00.3667 –051.0663Amapá HAMAB 1258 –00.3666 –051.0663Amapá HAMAB 274 –00.3666 –051.0663Amapá HAMAB 192 –00.3666 –051.0663Amazonas INPA 27 –02.8938 –056.6861Amazonas NYBG 13176 –03.4166 –057.9166Amazonas INPA 13176 –03.4166 –057.9166Amazonas US 13176 –03.42 –057.92Amazonas NYBG 23295 –03.1771 –059.7191Amazonas US 12074 –03.37 –064.7Amazonas INPA 12074 –03.3666 –064.7Amazonas US 29244 –03.23 –064.83Amazonas INPA INPA3617 –03.1019 –060.0250Amazonas INPA 712 –03.1019 –060.0250Amazonas IAN 3617 –03.1019 –060.0250Amazonas IAN 712 –03.1019 –060.0250Amazonas INPA 51 –03.7680 –060.3692Amazonas INPA 23295 –03.7680 –060.3692Amazonas INPA 2977 –03.7680 –060.3692Amazonas IAN 1609 –03.3541 –064.7114Argentina IAC 16505 –27.486 –058.8176Goiás UB 294 –15.2981 –049.4267Goiás HUNI 619 –15.9344 –050.1403Goiás HUNI 620 –15.9344 –050.1403Mato Grosso SPF 7077 –14.3333 –051.1666Mato Grosso SPF 7077 –14.3333 –051.1666Mato Grosso US 1026 –19.50 –056.17Mato Grosso US 181/1-3 –16.40 –056.38Mato Grosso US 2773 –16.93 –056.88Mato Grosso HPAN 3304 –16.1316 –057.9822Mato Grosso CNMT 717 –09.8197 –058.2587Mato Grosso SP CRONDON4678 –15.5961 –056.0966Mato Grosso UEC 3322 –16.2567 –056.6227Mato Grosso UEC 31 –16.2567 –056.6227Mato Grosso UEC 1058 –16.2567 –056.6227Mato Grosso UEC 891 –16.2567 –056.6227Mato Grosso UEC 3509 –16.2567 –056.6227Mato Grosso UEC 3175 –16.2567 –056.6227Mato Grosso UEC 2726 –16.2567 –056.6227Mato Grosso UEC 975 –16.2567 –056.6227Mato Grosso UEC s.n. –16.2567 –056.6227Mato Grosso UEC 01 –16.2567 –056.6227Mato Grosso UEC 2930 –16.2567 –056.6227Mato Grosso HPAN 987 –16.0706 –057.6789Mato Grosso CPAP 3013 –16.3602 –056.6166Mato Grosso CPAP 1886 –16.3833 –056.65Brazil state/country Collection codeCollector no. Latitude LongitudeMato Grosso do Sul UEC 79 –19.535 –055.45Mato Grosso do Sul UPCB 3144 –18.995 –056.6244Mato Grosso do Sul UEC 3817 –18.9833 –056.65Mato Grosso do Sul COR 596 –19.15 –056.85Mato Grosso do Sul JPB 189 –19.5725 –057.2416Mato Grosso do Sul UB 526 –19.0166 –057.5833Mato Grosso do Sul SP 1815 –21.2558 –052.0369Mato Grosso do Sul MBM 5346 –20.4711 –055.7872Mato Grosso do Sul COR 526 –19.0047 –057.6017Mato Grosso do Sul COR 818 –19.0091 –057.6533Mato Grosso do Sul COR 575 –19.0091 –057.6533Mato Grosso do Sul MBM 60935 –19.0091 –057.6533Mato Grosso do Sul SPF 900 –19.0091 –057.6533Mato Grosso do Sul UPCB 4243 –19.0091 –057.6533Mato Grosso do Sul UEC 2135 –19.0091 –057.6533Mato Grosso do Sul CPAP 2236 –18.3666 –054.5833Mato Grosso do Sul CPAP 3620 –19.1616 –055.3Mato Grosso do Sul CPAP 2732 –19.0272 –055.8108Mato Grosso do Sul CPAP 5346 –19.85 –055.9666Mato Grosso do Sul CPAP 3316 –19.9266 –056.2177Mato Grosso do Sul CPAP 5764 –19.4833 –056.3833Mato Grosso do Sul CPAP 1299 –18.0666 –056.5666Mato Grosso do Sul CPAP 3144 –18.995 –056.6244Mato Grosso do Sul CPAP 60935 –18.9833 –056.65Mato Grosso do Sul CPAP S/N. –18.9833 –056.65Mato Grosso do Sul CPAP 596 –19.15 –056.85Mato Grosso do Sul CPAP 6874 –20.8 –057.2333Mato Grosso do Sul CPAP 09 –20.2406 –056.3783Mato Grosso do Sul CPAP 4243 –19.0091 –057.6533Mato Grosso do Sul CPAP 526 –19.0091 –057.6533Mato Grosso do Sul CPAP 683 –19.0091 –057.6533Minas Gerais BHCB 15085 –20.9388 –043.7908Minas Gerais UFG 47 –20.8083 –042.0297Minas Gerais BHCB 2501 –19.9207 –043.9378Paraná ICN 1650 –22.7722 –053.2668Pará NYBG 8873 –8.75 –050.42Rondônia IAN 14591 –8.7619 –063.9039Bolívia UB 3559 –17.6669 –063.4280São Paulo UEC 176 –21.77 –047.0800São Paulo UEC 168 –21.76 –052.1100Tocantins HUTO s.n. –8.3969 –048.1161Tocantins HUTO 1969 –8.3969 –048.1161Tocantins HUTO s.n. –8.3691 –048.1202Tocantins IAN 046 –8.2666 –048.95Tocantins IAN 046 –8.2666 –048.95Tocantins SP 4009 –10.3963 –050.4302Tocantins US 4009 –10.3964 –050.4303Tocantins NYBG 4009 –10.3964 –050.4303clay soil, 22 Apr. 1976, Araújo, I.J. 2977 (INPA 55908). • Amazonas: Tefé, banks of Lago Tefé, 2 Dec.1982, Plow-man 12074 (INPA125823). • Amazonas: Manaus, Ca-choeira grande dos Bulhares, firm, sandy, humid soil, 16 Mar. 1956, Almeida, J.C. s/n (INPA 3617). • Ama-zonas: Parintins, várzea forest, Mamuru riverbank, 27 Jan. 2009, Galvão, A.K.L 27 (INPA 234707). • Ama-zonas: Paraná Urariá, between rio Maués-Açú and rio Apoquitaua, white water, 25 July 1983, Hill, S.R. 13176 (INPA 128628). • Amazonas: Manaus, praia da fábrica de gelo, riverbank, 17 Dec. 1958, Rodrigues, W.A. 712 (INPA 6860). • Amazonas: Careiro, lake near Bota-fogo head office, 4 Apr. 1970, Coelho, L.F. 51 (INPA 27999). • Amazonas: Tefé. Banks of Lago Tefé, 2 Dec. 1982, Plowman, S.N. (INPA 3033315). • Amazonas: Ca-reiro, Fazenda Santa Terezinha, Costa Terra Nova, Ilha do Careiro, Rio Amazonas, 21 Feb.1975, Prance 23295 (NY 1061130). • Amazonas: Manaus-Porto Velho road, stretch between the rivers Castanho and Tupana, clay forest, 17 July 1972, Silva, M.F 835 (INPA 36926). • 678 Check List 16 (3)Amazonas: s/d, Tsugaru, S. 836 (NY 1061170). • Mato Grosso: Poconé: road to porto cercado, murundum field, seasonally flooded, 28 Sept. 1992, Prado, A.L. 31 (UEC 122529). • Mato Grosso: seasonally floodable field, near km 18 of transpantaneira Poconé road, 3 Oct. 1991, Berg 17589 (NY 1061132). • Mato Grosso: Poconé: floodable field, farm Tutu Falcão, 4 July 1991, Prado, A. 891 (UEC 122544). • Mato Grosso do Sul: Brasilândia Perus, Terri-torial São Paulo, 26 Nov. 1992, Catharino 1815 (HUEFS 31433). • Mato Grosso: Poconé: Jofre field, floodable area, dry, 11 Sept. 1991, Prado, A.L. 16 (UEC 122530). • Mato Grosso: Poconé, farm Santa Izabel, seasonally flooded field, 26 Mar 1992, Prado 3175 (UEC122547). • Tocantins: lagoa da Confusão. Ilha do Bananal, Na-tional Park of Araguaia, 25 mar. 1999, Mendonça 40090 (NY1067955).Identification. Herbs, prostrate, rooting at the nodes, reddish stems, stipules 3–5 fimbriate, fimbriae pilose, reddish-vinous, ca 2 mm long; sessile leaves, elliptic, 9–17 × 2 mm, margins and midvein reddish-vinous; ax-illary one-two-flowered inflorescences; calyx 2-lobed, lobes ca 4 mm long, notoriously pilose; corolla white 17 mm long, tube ca 7 mm, 4-lobed, lobes 4 mm long; sta-mens fixed at the base of the corolla lobes, ca 5 mm long, anthers creamy, ca 1 mm long, style 17 mm long, bifid, stigmatic branches filiform. Dry fruit, indehiscent, obo-void, ca 6 × 4 mm, spongy pericarp, green, reddish-vi-nous when mature (Fig. 2A–D).DiscussionThe first record of Diodia kuntzei in Acre reflects the need to increase sampling (in all seasons of the year), even in well-collected areas where herbaceous plants occur, in northern Brazil. As the most widely distributed species of Diodia in South America, the occurrence of D. kuntzei in Acre was expected, based on the distribu-tion model by Zappi et al. (2016), who used topographic and climatic data. Most of the herbarium collections mentioned above are more than 30 years old, and, in most cases, specimens are composed of only fragments. Therefore, new collections from new localities are nec-essary to assess this species’ distribution.According to Pott and Pott (2000) and Pivare et al. (2008), D. kuntzei is a pioneer amphibious macrophyte, which grows along the margins of lagoons and tempo-rary inundated fields. Rocha et al. (2007) noticed an adaptive plasticity in D. kuntzei, occurring in all envi-ronments during the flood period.Moreover, Rebellato and Cunha (2005), when eval-uating the floristic similarity index between the rainy and dry periods, stated that D. kuntzei is a therophyte that predominates in both seasons, with cover values and relative frequencies of 17.19–8.80 and 17.35–10.49, respectively.This species has also been reported as having an aca-ricidal activity against larvae of Rhipicephalus micro-plus Canestrini, 1888 with efficiency greater than 95% (Santos et al. 2013). Other authors reported that it is among the 286 forage species in the Nhecolândia sub-region, Pantanal de Mato Grosso do Sul (Santos et al. 2002).In this study, we present the most western record ever observed for Diodia kuntzei; the nearest previously known occurrence of this species is about 800 km. This leads us to conclude that although the diversity of Rubia-ceae in the Alto Juruá region is known (Daly and Silveira 2008; Medeiros et al. 2014), new records are possible, mainly due to the size of the area and the paucity of stud-ies at this time.AcknowledgementsWe thank the undergraduate nursing student Camilo Pereira da Silva for the photographs of Diodia kuntzei. We also thank Professor Raquel D. Elboux Couto Nunes for revising the English version of this paper, as well as the reviewers and editors for their valuable corrections.Authors’ ContributionsMCS collected and identified the specimen. AACF con-firmed the identification. MCS, AACF, MS, and MVAL wrote and/or revised the manuscript. MVAL made the distribution map.ReferencesBacigalupo NM, Cabral EL (1999) Revisión de las espécies america-nas del género Diodia (Rubiaceae, Spermacoceae). Darwiniana 37 (1–2): 153–165.Daly DC, Silveira M (2008) Primeiro catálogo da Flora do Acre, Bra-sil. EDUFAC, Rio Branco, AC, 555 pp.Flora do Brasil (2019) Flora do Brasil 2020 under construction. Jardim Botânico do Rio de Janeiro. http://reflora.jbrj.gov.br/reflora/flora dobrasil/FB32586. Accessed on: 2019–11–30.Holmgren PK, Holmgren NH, Barnet LC (1990) Index herbario-rum: part I: the herbaria of the world. International Associa-tion for Plant Taxonomy, New York, 683 pp. https://doi.org/10. 1111/j.1756-1051.1983.tb01945Linnaeus C (1753) Species Plantarum Impensis Laurentii Salvii 1: 104. https://doi.org/10.5962/bhl.title.669Martius CFP von (Ed.) (1888) Diodia kuntzei K.Schum. Flora Brasil-iensis 6 (6): 15.Medeiros H, Daly DC, Silveira M, Obermüller FA, Daly DC, Silveira M, Castro W, Forzza RC (2014) Botanical advances in southwest-ern Amazonia: the flora of Acre (Brazil) five years after the first cat-alogue. Phytotaxa 177 (2): 101–117. http://doi.org/10.11646/phyto taxa.177.2.2Pereira GF (2007) A família Rubiaceae Juss. na Vegetação Ripária de um trecho do alto Rio Paraná, Brasil, com ênfase na tribo Sper-macoceae. PhD dissertation, Universidade Estadual de Maringá, Maringá, 68 pp.Pivare MO, Pott VJ, Pott, A (2008) Macrófitas aquáticas de ilhas flutu-antes (baceiros) nas sub-regiões do Abobral e Miranda, Pantanal, MS, Brasil. Acta Botanica Brasilica 22 (2): 563–571. https://doi.org/10.1590/S0102-33062008000200023Pott VJ, Pott A (2000) Distribuição de macrófitas aquáticas no panta-nal. III Simpósio sobre recursos naturais e socioeconômicos do Pantanal. Os desafios do novo milênio. EMBRAPA Pantanal, Co-rumbá, MS, 27 pp.Souza et al. | New record of Diodia kuntzei 679Rebellato L, Cunha CN (2005) Efeito do “fluxo sazonal da inundação” sobre a composição e estrutura de um campo inundável no Pan-tanal de Poconé, MT, Brasil. Acta Botanica Brasilica 19 (4): 789–799. https://doi.org/10.1590/S0102-33062005000400015Rocha CG, Resende UM, Lugnani JS (2007) Diversidade de macró-fitas em Ambientes aquáticos do IPPAN na Fazenda Santa Emí-lia, Aquidauana, MS. Revista Brasileira de Biociências, Porto Alegre, 5 (supl. 2): 456–458.Santos SA, Costa C, Souza GS, Pott A, Alvarez JM, Machado SR (2002) Composição Botânica da Dieta de Bovinos em Pasta-gem Nativa na Sub-Região da Nhecolândia, Pantanal. Revista Brasileira de Zootecnia 31 (4): 1648–1662. https://doi.org/10.1590/S1516-35982002000700007Santos LB, Souza JK, Papassoni B, Borges DGL, Damasceno Ju-nior GA, Souza JME, Carollo CA., Borges FA (2013) Efficacy of extracts from plants of the Brazilian Pantanal against Rhipi-cephalus (Boophilus) microplus. Revista Brasileira de Parasito-logia Veterinária 22 (4): 532–538. https://doi.org/10.1590/S1984-29612013000400013SpeciesLink (2019) Sistema de Informação Distribuído para Coleções Biológicas: a integração do Species Analyst e do SinBiota (FAPESP). Centro de Referência em Informação Ambiental- CRIA. http://inct.splink.org.br. Accessed on: 2019-08-09.Zappi D, Lima IB (2016) Diodia kuntzei (v.1). In: Biogeografia da flora e dos fungos do Brasil. INCT Herbário Virtual. http://biogeo.inct.florabrasil.net/proc/6955. Accessed on: 2020-03-18.

Diodia kuntzei k. Schum (rubiaceae, spermacoceae): A new record for the state of Acre, Brazil

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Diodia kuntzei k. Schum (rubiaceae, spermacoceae): A new record for the state of Acre, Brazil

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